Race Day CompetitionThe new Eagle F1 and the Eagle F1 Supersport models hug the road with the DynamicGSR compound, which combines Graphene and Silica. Between them, they increase both wet and dry grip while still rolling fast. The new Eagle F1 and the Eagle F1 Supersport models hug the road with the DynamicGSR compound, which combines Graphene and Silica. Between them, they increase both wet and dry grip while still rolling fast. This Eagle F1 Supersport has a narrower puncture protection belt and a slick centre tread section. This gives the Supersport the fastest possible rolling performance and is aimed at competition, being much suited to road racing, time trial and triathlon where speed is the ultimate requirement.